colwell



(No Model.) 4 sheets-sheet i- W. S. COLWELL. 1

TRIPLE THERMI MOTOR.

No. 313,179. Patented Mar. 3, 1885.

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` TRIPLETHERMIG MOTOR. No. 313,179. Patented Mar. 3, 18851.

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(No Model.) 4 Sheets-Sheet 3.

. W. S. GOLWELL.

TRIPLE THERMIG MOTUR.

Patented Mar. 3. 1885.

INVENTOR.

WITESSES:

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(No Model.) 4 Sheets-Sheet 4.

W. S. .CONV-ELL.

TRIPLE THBRMIG MOTOR. l No. 313,179. Patellted'1V[a.`1^.v 3, 1885.

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qJnniTnn STATES v PATENT Trice.

WILLIAM S. COLVELL, OF PITTSBURG, PENNSYLVANIA, ASSIGNOR TO THE TRIPLE THERMIO MOTOR COMPANY, OF lTEVV YORK, N. Y.

TRIPLE THERMIC MOTOR.

JECFECATlON forming part o1' Letters Patent No. 313,179, dated March 3, 1885.

Application filed August 2|, 1884.

fr; all whom, 'it may! conce/vt.-

Be it known that l, WILLIAM S. COLWELL, of Pittsburg, in the county of Allegheny and State of Pennsylvania, haveinvented a certain new and useful Improvement in Triple Thermic Motors; and l do hereby declare that the following is a full, clear, and exact description thereof, reference beinghad tothe accompanying drawings, and to the letters of reference 1o, marked thereon.

My invention consists in the combination of devices, hereinafter described and speciiically claimed.

To enable others skilled in ihe art with i5 which my invention is most nearly connected to make and use the same, l will proceed to describe its construction and operation.

In the accompanying drawings, which form part of this specification, Figure l is a side elevation of my improvement in a triple thermic motor. Fig. 2 isa vertical section ofthe regulating-valve used in connection with said motor. Fig. 3 is a side elevation of said valve. Eig. 4 is a vertical section of the regulatingvalve used for controlling the pressure of steam in the casing which surrounds the conduit for. the bisulphide-Of-carbon vapor and the casing surrounding the cylinder ofthe engine. Fig. 5 is aside elevation of thesaine. Fig. 6 is a vertical section ot` a washer used in connection with said motor.

Reference being had to the accompanying drawings, A represents an ordinary steamboiler, provided with the usual appendages, and is provided with a conduit, B, which coinmunicates with the regulatingvalve C, (see Fig. 2,) which consists of two chambers, c b, secured together, with a non-conducting packing, c, placed between them*such as asbestus-for preventing the heat from chamber b being` transmitted to chamber a..

The chamber c is provided with a plunger, d, connected to a pivoled lever, e, having an adjust-able weight,f. The lower end oi' the y plunger d is of the form ofa section ofasphere,

which form will prevent the plunger from cutting or otherwise injuring the elastic diaphragm g, which divides the chamber c into two compartments.

The chamber b is furnished with a balancevalve, h, and suitable'seats for said valve.

(Xo model.)

The stern t' of this valve is connected to the lever e. To the chamber b is connected the pipe B, which communicates with the steamboiler A. y

To the chamber ar is connected a pipe, k, which communicates with the vapor-space of the bisulphide-of-carbon boiler F, and is provided with a valve, l, above which said pipe is filled with water. The weight f being ad- 6o iusted on the lever e for securing the desired pressure ofthe bisulphide-ot'-carbon vapor in the boiler E and the desired admission of steam to and through said boiler for evolving said ivapor, steam ilowing through pipe B from boiler A enters the chamber Z of the regulating valve O, and passes therefrom through the pipe D lo and through the boiler F. The vapor of bisulphide of carbon passes from the boiler' F, tilling the pipe k, in which 70 it condenses until it fills the pipe to about the dotted lincel x. The valve Z now being opened, the bisulphide-of-carbon vapor will pressagainst the water, which. pressing against the elastic diaphragmg, and it against the plunger d, which, in combination with the lever e and weightf, will open and close the valve 7L in accordance with the pressure in the bisulphideotcarbon`boiler F, closing said valve when the pressure is greater than that fixed 8o upon, and opening it when it is less, thereby diminishing the ilow ofsteani through thepipe D when the pressure of the bisulphide-of-carbon vapor is greater than that determined upon, and increasing said flow when it is less, S5 thereby increasing and diminishing the heat around and through the bisulphide-of-carbon boiler F, whereby the desired working-pressure ofthe vapor is always maintained.

The pipe A' comnninicates with the pipe B 90 and the regulating valve K, which is constructed in every respect the same as the regulating-valve C, excepting the pipes n and o, the latter of which communicates with the casing l, which surrounds the pipe H, which conducts. the vapor of bisulphide of carbon to the cylinder of the engine J.

The operation ofthe valve K is the same as that of the valve C, excepting that the steam which enters it also controls the movements of IOO its valve and plunger for controlling the admission of steam into the case T, by adjusting the weight g of the lever r for obtaining the desired pressure of steam in the case I, which pressure may be indicated by a gage, as at B.

The operation will be as follows: y The steam, flowing from the boiler A through pipes B A', entersthe chamber M', and from it, through pipe o, enters the case I, which communicates with the casing of the cylinder of the engine J, so that the same pressure of steam which is in case I will also be in the casing of the cylinder of the engine. In the .event of the pressure in the boiler A increasing beyond that determined upon for the case I, the pressure of steam will act against the diaphragm g', which acting the plunger d will thereby, through the medium of the lever r and weight g, so operate the valve h as to eut oft' or partly cut off the supply of steam to case I till the desired pressure is attained in said ease. If the pressure in the easin gs should become less than that fixed upon,then the weight q, through the medium ofthe lever r,wil1open the valve h', so as to admit more steam, and will hold the valve open till the desired pressure is attained, It will be observed that by this ar rangement of the regulating-valve K with relation to the casing I, and it communicating with the casing of the cylinder of the engine 1J, uniform pressure may be maintained in said casings notwithstanding any variation of pressure that may occur in the boiler A, and that the heat, and consequently pressure, in said casings is greater than that in the casing E ofthe bisulphide-of-carbon boiler F, and that the vapor in the pipe H and in the cylinder of' the engine is subjected to an increased heat, which increases the tension after it leaves the boiler F until it performs its ot'tice upon thepiston of the engine J.

In the operation of the steam-engine from the moment the steam leaves the boiler and its furnaces or super-heater until it reaches the piston of the engine' there isa continuous loss ot" its heat, and therefore a corresponding loss of power, and when working steam eXpansively there is a further loss of heat and power due to the steam coming in contact with the walls of the cylinder, which are of less temperature than the steam; but in working the vapor ot'bisulplii-.e of, carbon, as herein described, lhe vapor is superheated from the time it haves the generating-boiler F until the end ofthe stroke ot the piston of the engine, the vapor being subjected after leaving the boiler to a greater temperature in the pipes and cylinder than that at which it was evolved in the boiler F. It therefore follows that in working it expansivcly it can be cut olil at an earlier point in the stroke of the piston, and in view ot' these facts economy ol' fuel, heat, and a full utilization of the power gen erated in the boiler follow.

For the purpose of showing the gain secured by this arrangement for subjecting the vapor to a greater heat than that at which it was generated in the boiler F, I give the following example: When the pressure of steam in the looi1- er A is about fifty (50) pounds per square inch of boiler-surface, and the circulatingpressure of the steam around and through the boiler F is six (6) pounds per square inch of boiler-surface, (workingpressure.) the bisulphide of carbon in the boiler F will be subjected to about 2300 of heat, Fahrenheit, which will evolve the bisulphide of carbon into a vapor having a working-pressure of sixty-eight (68) pounds working-pressure per square inch of boiler-surface. Now, with about forty-three (43) pounds working-pressure in the casing I and in the casing of the cylinder of the engine J, the bisulphide of-carbon vapor, after leaving rthe boiler F, will be subjected to an increased heat of sixty-three (63) degrees more than it was in the boiler F, therefore requiring a less quantity of vapor to be withdrawn from the boiler F for the purpose of working the engine J.

When it is desired to work the vapor eX- pansively the engine is `provided with any known cut-off77 mechanism. rlhe vacuumpump R communicates with the condenser M and with the washer S, which latter device (see Fig. 6) consistsof a shell, s, with. a. pipe,

t, having a valve, a, said pipe communicating with the vacuum pump R and projecting down into the shell belowthe water-line (indicated by doted line 12,) at which point is a` waste-pipe, w. To the npperend of the shell s is attached a pipe, i', for carrying off the ICG washed air and incondcnsable and unabsorbed s. The pistou and valve rods are provided.

with packing-chambers, which through the medium ot' the pipe s with wellA N, which communicates with the condenser Mv and vacuumpump R, which arrangement and combination of parts will prevent the vapor of bisulphide of carbon leaking out into the engine-room, the tendency of the atmosphere being` toward the joints around the piston and valve rods. By this combination of parts, in connection with the exhaust-ports of the engine J, communicating by pipe y with the heater L, condenser M, well N, and vacuumpump R, it will be apparent that it will beimpossible for any ofthe vapor of bisulphide of carbon to escape into the engiueroom or be wasted. The hot-water pump O, which supplies'the boiler A with hot water, the product of the condensed steam, which product is conveyed to the pump through the medium of pipes communicating with the several compartments supplied with steam from the boiler A, is the same as that described in Letters Patent No. 266,952,1gra11ted to me October 31,1882.

It was` discovered that in the working of the pump (marked D in the drawings of said patent) it did not at all times work perfectly at or about the boiling-point. To remedy this defect, a pipe, e, is employed, so as to com` municate between the casing of the boiler F and the pump O, to convey steam therefrom, which means causes said pump to do its Work` successfully at all times. l state this fact, Which has been fully demonstrated by anexperience of several months use of said arrangement, without attempting to describeits theory of operation. Y

The operation of my improvement, briefly stated, is substantially as follows: Steam is generated in the boiler A, which, by means of a pipe provided with a reducing-valve, communicates with a boiler, F, and by the heat of the steam at a low degree of pressure the bi-` sulphide of carbon is evolved into a vapor,

which is conveyed by pipe H to the cylinder ofthe engine, the vapor being superheated in said pipe by steam from the boiler A at a higher pressure,and consequently a higher degree of temperature. After the Vapor has performed its office in the engine-cylinder it is exhausted and conducted to thecondenser M by gravity, assisted by the vacuum in the condenser. Passing through the heater L on its way'to the condenser, the exhaust-vapors impart their heat to the liquid, being returned from the Well N through the heaters L and T into the boiler F by pump P.

The vacuum-pump R forms a vacuum in the condenser M and well N by withdrawing air and gases from them and forcing said air and gases through pipe t down into the Water in the Washer S, thereby Washing said air and condensing the condensable gases, the Washed air and incondensable gases passing off th one-h the pipe y', and any bisulphide ofcarbon which may be collected in the Washer S can be drawn oft by means of the pipe b', and thereby be saved.l

The methods involved in generating a motor from liquid bisulphide of carbon embodied in my invention are claimed in my application No. 138.819, iled July 26, 1884, ol' which this is a division.

Having thus described the construction and operation of my'improvements, what I claim 1s- 1. The combination of a heat-generator, a

vapor-generator, means, substantially as de-4` scribed, for applying heat tothe vapor-generator, a vapor-conduit, and a superheaiing or expanding chamber in which a higher degree ot' heat is applied to the vapor and continued until the vapor has been utilized in an engine-cylinder, substantially as described.

2. The combination oil a steam-generator, a vapor-generator, a chamber surrounding the vapor-generator, a conduit for supplying steam to said chamber at a low temperature, and an automatic pressure-reducing valve operated by the vapor acting upon one end ot' a column of liquid and the gravityof asuspended Weight upon the other end, substantially as described. 3. rllhe combination of a steam-generator, a vapor-generator, means, substantially as described, for applying heat thereto at a 10W temperature, a vapor-superheating conduit, and a valve for controlling the supply of steam at a higher temperature to the chamber surrounding said conduit, substantially as described.

4. The combination of a steamgenerator, a vapor-generator, means, substantially as described, for applying steam at a low pressure a conduit i'or conducting the vapor to the eni'or controlling the supply of steam at a higher pressure to a chamber surrounding the conduit and ajaclcet around the working-cylinder, `substantially as described.

5. The combination of a stean1-generator,`a vessel containing liquid bisulphide of carbon, means, substantially as described, for applying steam thereto at a low temperature for evolving vapor, a superheatiiig-chamber, and an automatic valve for supplying steam at a higher temperature to said expanding-chamber and to a jacket around the Working-cylinder, substantially as described.

.6. The combination ot' a steam-generator, a vapor-generator, means, substantially as described, for applying steam at a low pressure to evolve vapor from liquid bisulphide of carsteam direct from the steam-generator, and a relief-valve for returning any excess of vapor to the condenser, substantially as described.

7 The combination of a steam-generator, a vapor-generator containing liquid bisulphide of carbon, means, substantially as described, for evolving vapor therefrom by applying steam at a low pressure, a conduit for conveying the vapor to an engine and superheating the same, a valve for controlling the supply of vapor to the conduit, and a steam supplyvalve for controlling the steam from the generator to the chamber surrounding the conduit, substantially as described. Y

8. rlhe combination of asteam-generator, a vapor-generator containing liquid bisulphide of carbon, means, substantially as described, for evolving vapor therefrom, an automatic pressure-reducing valve, a conduit for conducting the vapor to the engine and superheating the same, an automatic valve for controlling the supply of steam to the chamber surrounding the conduit, and a valve for controlling the supply of vapor to the conduit, substantially as described.

9. The combination of a steam-generator, a vapor-generator, and means for applying heat thereto at a low temperature to evolve a vapor from liquid bisulphide of carbon, a conduit for conducting the vapor to the engine, a chamber surrounding the conduit, a pressurereducing valve i'or supplying steam to the vapor-generator operated by the vapor contained inthe generator acting upon one end of a column o1` liquid and the gravity of aWeight upon the other end, and a valve for controlling the supply of steam direct from the generator to the superheating-chamberat a higher temperature operated by the pressure of steam to liquid bisulphide of carbon to evolve vapor,

gine and superheating the same, and a valve bon, a conduit for superheating the vapor with i 'tion of 'heat at a loW temperature and super-- in said chamber and the gravity of a suspended Weight, substantially as described.

A10. The combination of a steam-generator, a vessel in which liquid bisulphide of carbon is evolved into vapor by the application of heat at a low temperature, a conduit in which it is superheated under heat of a higher temperature automatically supplied and continued throughout the Working stroke of the engine, a valve for controlling the supply of vapor to the conduit, and an automatically-operated valve for supplying the engine and cutting o' the supply, substantially as described.

11. The combination of a steam-generator, avapor-generator containing liquid bisulphide of carbon evolved into vapor at a low temperature and superheated under a higher temperature by the application thereto of steam direct from a steam-generator, an engine in which the energyof the vapor is applied, and a condenser to which the exhaust is returned, substantially as described.

12. The combination of a steam-generator, -avapor-gencrator containing liquid bisulphide lof carbon evolved into vapor at a low temperature and superheated at a higher temperature by steam from the generator, said expansion being maintained above its initial expansion until its power has been applied to an engine, a condenser, and a washer into which the air which may be contained in the condenser charged with uncon'densed vapor is conducted, substantially as described.

, 13. The combination of a steam-generator, aVapor-generator containing liquid bisulphide of carbon, means, substantially as described, for evolving vapor therefrom under a low degree of heat and superheatingthe vapor under a higher degree of heat automatically controlled and maintained during the stroke of the engine-piston, acondenser, and a vacuum- V pump whereby the exhaust-vapor is returned a vapor-generator containing liquid bisulphide of carbon evolved into vapor by the applicaheated by heat at a higher temperature automatically supplied and maintained until the power thereof has been applied to an engine, a condenser, a reheater, and a pump for returning the liquid bisulphide to the vapor-genpump, and the Washer partly lled with Water,

substantially as described.

16. In a bisulphide-of-carbon engine, the

Washer partly filled with Water, a dip-pipe projecting into the Water, a receptacle for the precipitated liquid bisulphide of carbon, an outlet for said liquid, and an escape-pipe for the air into the open atmosphere,substan tially as described. 17. In a bisulphide-of-carbon engine, the combination of the condenser, the well, the Washer, the vacuum-pump, and .the liquidpump for returning the liquid bisulphide to the vapor-generator, substantially'as described.

18. In a bisulphide-of-carbon engine, the combi-nation of a steam-generator, a vaporgenerator, and conduit for conducting the vapor to the engine, the chambers surrounding the vapor-generator, the conduit, and the cylinder, and means, substantially as described, for conducting steam to said chambers and returning the water of condensation With a volume of steam from the chamber surrounding the vapor-generator to a pump for returning said water tothe steam-generator, substantially as described.

19. In a bisulphide-of-carbon engine, the

combination of the engine, its exhaust-ports,

the'chamber surrounding the piston and valverods, the condenser, and a vacuum-pump, substantially as described. y

20. In a bisulphide-of-carbon engine, the combination of the chambers surrounding the piston and valve rods, the condenser, and a vacuum-pump, substantially as described.

21. In a bisulphide-of-carbon engine, the valve for controlling the supply of steam to the vapor-generator, which consists of abaianced valve, a piston and diaphragm, suitable intermediate connections, and a suspended Weight, in combination with a pipe containing a column of Water interposed between the diaphragm and the vapor contained in the vapor-generator,- substantially as described.

22. In a bisulphide-of-carbon engine, the valve for controlling the supplyof steam in regulated quantities and at a predetermined pressure to the chamber surrounding the valOO poiconduit,whicl1 consists of a balanced valve,

a piston, a diaphragm, and-.suitable intermediate connections, in combination with a pipe connecting with said chamber to admit steam to the diaphragm to move the valve in oneA Witnesses:

JAMES J. JoHNsToN, WM. E. DYRE.

IIO 

